Clearing queues

gistfile1.m

+ (void)pauseAndEmptyQueues
{
    NSOperationQueue *mainOperationQueue = [[SLKDataRepository sharedRepository] mainOperationQueue];
    NSOperationQueue *backgroundOperationQueue = [[SLKDataRepository sharedRepository] backgroundOperationQueue];
    NSOperationQueue *readOperationQueue = [[SLKDataRepository sharedRepository] readOperationQueue];
    
    [mainOperationQueue setSuspended:YES];
    [backgroundOperationQueue setSuspended:YES];
    [readOperationQueue setSuspended:YES];
    
    [mainOperationQueue cancelAllOperations];
    [backgroundOperationQueue cancelAllOperations];
    [readOperationQueue cancelAllOperations];
    
    [mainOperationQueue waitUntilAllOperationsAreFinished];
    [backgroundOperationQueue waitUntilAllOperationsAreFinished];
    [readOperationQueue waitUntilAllOperationsAreFinished];
}

+ (void)restartQueues
{
    NSOperationQueue *mainOperationQueue = [[SLKDataRepository sharedRepository] mainOperationQueue];
    NSOperationQueue *backgroundOperationQueue = [[SLKDataRepository sharedRepository] backgroundOperationQueue];
    NSOperationQueue *readOperationQueue = [[SLKDataRepository sharedRepository] readOperationQueue];
    
    [mainOperationQueue setSuspended:NO];
    [backgroundOperationQueue setSuspended:NO];
    [readOperationQueue setSuspended:NO];
}

+ (BOOL)addPersistentStoreForAccount:(SLKAccount *)account coordinator:(NSPersistentStoreCoordinator *)coordinator
{
    [self pauseAndEmptyQueues];
    
    BOOL result = [self configureStoreForAccount:account coordinator:coordinator];
    
    [self restartQueues];
    
    return result;
}